condition mean min max 3 h after light 160.764 156.891 166.918 6 h after light 80.5638 75.3611 87.4644 9 h after light 73.49363333333334 67.564 82.3242 12 h after light 76.6718 66.619 82.0146 3 h after dark 76.9873 74.9542 80.3787 6 h after dark 129.69833333333332 122.781 135.912 9 h after dark 146.26999999999998 141.587 154.813 12 h after dark 147.75366666666667 141.007 156.15